| 平地机半轴疲劳寿命预估及其台架疲劳试验 |
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| 引用本文： | 吴仁智,杨学良,周金华,刘汉光,胡华亮,吴根茂. 平地机半轴疲劳寿命预估及其台架疲劳试验[J]. 中国机械工程, 2001, 12(12): 1336-1338 |
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| 作者姓名： | 吴仁智 杨学良 周金华 刘汉光 胡华亮 吴根茂 |
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| 作者单位： | 徐州工程机械集团有限公司,江苏省徐州市,221004 |
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| 基金项目： | 国家自然科学基金资助项目(59835160) |
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| 摘 要： | 针对PY160平地机后桥链轮半轴实际载荷工况，编制了相应的8级载荷谱，利用载荷谱对改进前后的半轴进行疲劳寿命分析和预估，用等效强化对改进后的半轴进行室内台架疲劳试验。将半轴预估寿命，台架试验寿命及改进前后半轴的实际工程寿命进行对比和分析，验证了利用修正Miner法则与Goodman图线预估半轴疲劳寿命是可行和可靠的，满足实际工程需要的寿命预估，并为类似零部件的疲劳设计提供了方法和相关疲劳数据。
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| 关 键 词： | 平地机 半轴 疲劳寿命预估 台架疲劳试验 |
| 文章编号： | 1004-132X(2001)12-1336-04 |
Prediction of Fatigue Life and Test-rig Fatigue Tests for the Grader Half- shaft |
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| WU Renzhi. Prediction of Fatigue Life and Test-rig Fatigue Tests for the Grader Half- shaft[J]. China Mechanical Engineering, 2001, 12(12): 1336-1338 |
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| Authors: | WU Renzhi |
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| Abstract: | According to practical load conditions on rear-axle chain-wheel half-shaft of PY160 grader, an 8-grade load spectrum is compiled, and the fatigue life analysis and prediction for the original and modified shafts are achieved by the spectrum respectively. The equivalent strengthened test-rig fatigue tests for the shafts are accomplished. A fatigue life comparison is drawn between predictive values and analysed ones, test-rig fatigue tests and the practical applications. It validates that the fatigue life of the shaft calculated by the modified Miner rule and Goodman diagram is feasible and reliable, and meets the practical engineering requirements. A method and related fatigue data is provided for the fatigue life design of the similar parts described in the paper. |
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| Keywords: | grader half-shaft fatigue life prediction test-rig fatigue test |
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